TWI896981B - Light-emitting device array and optical transceiver system having the same - Google Patents

Abstract

A light-emitting device array includes a first light-emitting device, a second light-emitting device, and a third light-emitting device. The first beam shaping structure of the first light-emitting device is configured to convert the light emitted by the first light-emitting structure of the first light-emitting device into first structured light. The second beam shaping structure of the second light-emitting device is configured to convert the light emitted by the second light-emitting structure of the second light-emitting device into second structured light. The speckle patterns and the spatial distributions of the first structured light and the second structured light on a projection plane are the same. The third beam shaping structure of the third light-emitting device is configured to convert the light emitted by the third light-emitting structure of the third light-emitting device into third structured light. The speckle patterns and the spatial distributions of the third structured light and the first structured light on the projection plane are different.

Description

Light emitting element array and optical transceiver system having the same

The present disclosure relates to a light emitting device array and an optical transceiver system having the light emitting device array.

With advancements in current technology, structures known in the semiconductor industry as metasurfaces are being applied to laser optical systems to replace traditional diffractive optical elements (DOEs). This allows for the miniaturization of laser optical components with metasurfaces. Furthermore, because the geometry of metasurfaces is smaller than the wavelength of visible light, they offer a wider range of optical phase control capabilities than traditional diffractive optical elements.

While laser optical devices with meta-smooth interfaces offer the potential for device miniaturization and the ability to shape laser beams, the lightwave control capabilities of the meta-smooth interface are typically fixed after the manufacturing process. This results in overly uniform laser optical properties and limits their operational flexibility in real-world applications.

One technical aspect of the present disclosure is a light-emitting element array.

According to some embodiments of the present disclosure, a light-emitting element array includes a first light-emitting element, a second light-emitting element, and a third light-emitting element. The first light-emitting element includes a first light-emitting structure and a first beam shaping layer located on the first light-emitting structure. The first beam shaping layer is configured to convert light emitted by the first light-emitting structure into a first structured light. The second light-emitting element includes a second light-emitting structure and a second beam shaping layer located on the second light-emitting structure. The second beam shaping layer is configured to convert light emitted by the second light-emitting structure into a second structured light. The first structured light and the second structured light have the same spot pattern and spatial distribution on a projection surface. The third light-emitting element includes a third light-emitting structure and a third beam shaping layer located on the third light-emitting structure. The third beam shaping layer is configured to convert light emitted by the third light-emitting structure into a third structured light. The third structured light and the first structured light have different spot patterns and spatial distributions on a projection surface.

In some embodiments, each of the first structured light converted by the first beam shaping layer, the second structured light converted by the second beam shaping layer, and the third structured light converted by the third beam shaping layer has a reference light, and the reference lights are identical to each other.

In some embodiments, the first beam shaping layer has a first metasurface, the second beam shaping layer has a second metasurface, and the third beam shaping layer has a third metasurface.

In some embodiments, the geometric shape of the first hyperbolic interface is the same as the geometric shape of the second hyperbolic interface, and the geometric shape of the first hyperbolic interface is different from the geometric shape of the third hyperbolic interface.

In some embodiments, each of the first, second, and third superfluid interfaces has a plurality of superfluid atoms, and the superfluid atoms are cylindrical, square, rectangular, or a combination thereof, and have a square lattice or a hexagonal lattice.

In some embodiments, each of the first, second, and third light-emitting structures includes a laser diode and a substrate. The substrate is located between the laser diode and the first beam shaping layer, between the laser diode and the second beam shaping layer, or between the laser diode and the third beam shaping layer.

In some embodiments, the light-emitting device array further includes a carrier and an electrode array. The carrier supports the first, second, and third light-emitting structures. The electrode array is located on the carrier and includes a plurality of N-electrodes and a plurality of P-electrodes. Each of the first, second, and third light-emitting structures is electrically connected to one of the N-electrodes and one of the P-electrodes.

Another technical aspect of the present disclosure is an optical transceiver system.

According to some embodiments of the present disclosure, an optical transceiver system includes a light-emitting element array and a receiver array. The light-emitting element array includes a first light-emitting element, a second light-emitting element, and a third light-emitting element. The first light-emitting element includes a first light-emitting structure and a first beam shaping layer located on the first light-emitting structure. The first beam shaping layer is configured to convert light emitted by the first light-emitting structure into a first structured light. The second light-emitting element includes a second light-emitting structure and a second beam shaping layer located on the second light-emitting structure. The second beam shaping layer is configured to convert light emitted by the second light-emitting structure into a second structured light. The first structured light and the second structured light have the same spot pattern and spatial distribution on a projection surface. The third light-emitting element includes a third light-emitting structure and a third beam shaping layer located on the third light-emitting structure. The third beam shaping layer is configured to convert light emitted by the third light-emitting structure into a third structured light. The third structured light has a different spot pattern and spatial distribution from the first structured light on the projection surface. The receiver array is configured to receive the first structured light, the second structured light, and the third structured light.

In some embodiments, the first beam shaping layer has a first metasurface, the second beam shaping layer has a second metasurface, and the third beam shaping layer has a third metasurface.

In some embodiments, the geometric shape of the first hyperbolic interface is the same as the geometric shape of the second hyperbolic interface, and the geometric shape of the first hyperbolic interface is different from the geometric shape of the third hyperbolic interface.

In some embodiments, the optical transceiver system further includes a modulator, a focusing lens, and an imaging recognition system. The modulator is electrically connected to the light-emitting element array. The focusing lens is disposed on one side of the receiver array. The imaging recognition system is electrically connected to the receiver array.

In some embodiments, each of the first structured light converted by the first beam shaping layer, the second structured light converted by the second beam shaping layer, and the third structured light converted by the third beam shaping layer has a reference light, and the reference lights are identical to each other.

In some embodiments, the light-emitting device array of the optical transceiver system further includes a carrier and an electrode array. The carrier supports the first, second, and third light-emitting structures. The electrode array is located on the carrier and includes a plurality of N-electrodes and a plurality of P-electrodes. Each of the first, second, and third light-emitting structures is electrically connected to one of the N-electrodes and one of the P-electrodes.

In the above-described embodiment of the present disclosure, because the light-emitting element array includes a first light-emitting element, a second light-emitting element, and a third light-emitting element, the first and second structured lights have the same spot pattern and spatial distribution on the projection surface, while the third structured light has a different spot pattern and spatial distribution from the first structured light. Therefore, the first, second, and third structured lights can achieve a variety of different spot patterns and spatial distributions on the projection surface, allowing the light-emitting element array to emit structured light with a high degree of freedom. Furthermore, because the light-emitting element array includes a plurality of light-emitting elements, the image projected by the light-emitting element array can have a higher image resolution, and the light-emitting element array can implement the function of two-dimensional laser beam array scanning.

The following disclosed embodiments provide numerous different embodiments, or examples, for implementing various features of the provided subject matter. Specific examples of components and arrangements are described below to simplify the present disclosure. However, these examples are merely examples and are not intended to be limiting. Furthermore, the present disclosure may repeat component symbols and/or letters throughout the various examples. This repetition is for simplicity and clarity and does not, in itself, dictate a relationship between the various embodiments and/or configurations discussed.

Spatially relative terms such as "below," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive purposes to describe the relationship of one element or feature to another element or feature as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

FIG1 is a schematic diagram illustrating the operation of a light-emitting element array 100 according to an embodiment of the present disclosure. FIG2 illustrates the spot patterns S1 to S3 of the first structured light SL1, the second structured light SL2, and the third structured light SL3 of FIG1 on a projection plane PP. Referring to both FIG1 and FIG2, the light-emitting element array 100 includes a first light-emitting element 110, a second light-emitting element 120, and a third light-emitting element 130. The first light-emitting element 110 includes a first light-emitting structure 111 and a first beam shaping layer 112 positioned above the first light-emitting structure 111. The first beam shaping layer 112 is configured to convert light emitted by the first light-emitting structure 111 into the first structured light SL1. The second light-emitting element 120 includes a second light-emitting structure 121 and a second beam shaping layer 122 positioned above the second light-emitting structure 121. The second beam shaping layer 122 is configured to convert the light emitted by the second light-emitting structure 121 into second structured light SL2. On the projection plane PP, the first structured light SL1 and the second structured light SL2 have the same spatial distribution, and the spot pattern S1 of the first structured light SL1 and the spot pattern S2 of the second structured light SL2 are the same. The third light-emitting element 130 includes a third light-emitting structure 131 and a third beam shaping layer 132 positioned above the third light-emitting structure 131. The third beam shaping layer 132 is configured to convert the light emitted by the third light-emitting structure 131 into third structured light SL3. On the projection plane PP, the first structured light SL1 and the third structured light SL3 have different spatial distributions, and the spot pattern S1 of the first structured light SL1 and the spot pattern S3 of the third structured light SL3 are also different.

In some embodiments, the projection surface PP can be a person's face or hand. For example, the light-emitting device array 100 can be used in facial recognition systems in mobile phones, expression recognition, 3D sensing in augmented reality (AR) glasses, and pedestrian and hand recognition in motion-sensing games. In other embodiments, the projection surface PP can also be other surfaces, and this is not intended to limit the present disclosure.

Specifically, because the light-emitting element array 100 includes a first light-emitting element 110, a second light-emitting element 120, and a third light-emitting element 130, and the spot pattern S1 of the first structured light SL1 and the spot pattern S2 of the second structured light SL2 on the projection plane PP are the same, and different from the spot pattern S3 of the third structured light SL3, the first structured light SL1, the second structured light SL2, and the third structured light SL3 can achieve a variety of different spot patterns and spatial distributions on the projection plane PP, allowing the light-emitting element array 100 to emit structured light with a high degree of freedom. In addition, because the light emitting element array 100 includes a plurality of light emitting elements (e.g., the first light emitting element 110, the second light emitting element 120, and the third light emitting element 130), the image projected by the light emitting element array 100 can have better image resolution, and the light emitting element array 100 can be applied to the function of two-dimensional laser beam array scanning.

Furthermore, the first structured light SL1 generated by the first beam shaping layer 112, the second structured light SL2 generated by the second beam shaping layer 122, and the third structured light SL3 generated by the third beam shaping layer 132 each have a reference light RL, and the reference light RL is identical. This configuration enables the light-emitting device array 100 to perform 3D sensing, calibration, and positioning functions.

In some embodiments, the first beam shaping layer 112 has a first meta-interface 113, the second beam shaping layer 122 has a second meta-interface 123, and the third beam shaping layer 132 has a third meta-interface 133. Because the first light-emitting structure 111, the second light-emitting structure 121, and the third light-emitting structure 131 can be semiconductor laser devices, and the manufacturing processes of the meta-interface and the semiconductor laser devices can be integrated, the manufacturing process of the light-emitting device array 100 can bypass the optical device manufacturing plant and semiconductor packaging plant used to configure the diffractive optical element (DOE), achieving monolithic integration, thereby further reducing the size of the light-emitting device array 100.

In addition, the geometric pattern G1 of the first super-smooth interface 113 is identical to the geometric pattern G2 of the second super-smooth interface 123 (as shown in Figures 4 and 5 ), and the geometric pattern G1 of the first super-smooth interface 113 is different from the geometric pattern G3 of the third super-smooth interface 133 (as shown in Figures 4 and 6 ). This configuration enables the spot pattern S1 of the first structured light SL1 to be identical to the spot pattern S2 of the second structured light SL2, and different from the spot pattern S3 of the third structured light SL3. This enables the light-emitting element array 100 to be applied to high-resolution and high-precision timing coding technology. In some embodiments, the spot pattern S1, the spot pattern S2, and the spot pattern S3 may include a dot array, a random pattern arrangement, or a mesh pattern distribution. In this embodiment, the spot pattern S1 and the spot pattern S2 are dot arrays, and the spot pattern S3 is a random speckle arrangement.

In addition, the light-emitting device array 100 may further include a carrier 140 (submount) and an electrode array 150. The carrier 140 supports the first light-emitting structure 111, the second light-emitting structure 121, and the third light-emitting structure 131. The electrode array 150 is located on the carrier 140. The electrode array 150 has a plurality of N electrodes 152 and a plurality of P electrodes 154. Each of the first light-emitting structure 111 of the first light-emitting device 110, the second light-emitting structure 121 of the second light-emitting device 120, and the third light-emitting structure 131 of the third light-emitting device 130 is electrically connected to one of the N electrodes 152 and one of the P electrodes 154. This configuration allows the first light emitting element 110, the second light emitting element 120 and the third light emitting element 130 of the light emitting element array 100 to operate independently (eg, independently control the brightness of each light emitting element), so that the light emitting element array 100 can emit structured light with a high degree of freedom.

FIG3A shows a side view of the first light-emitting element 110 in FIG1 on the electrode array 150. FIG3B shows a top view of the first light-emitting element 110 in FIG1 on the electrode array 150. Referring to both FIG3A and FIG3B, the first light-emitting element 110 includes a first light-emitting structure 111 and a first beam-shaping layer 112 disposed on the first light-emitting structure 111. The first beam-shaping layer 112 has a first superfluid interface 113. The first superfluid interface 113 has a plurality of superfluid atoms 114. In some embodiments, the superfluid atoms 114 may be cylindrical, square, rectangular, or a combination thereof, and may have a square or hexagonal lattice. Furthermore, the top surface areas of these super-slim atoms 114 can vary, allowing the first beam shaping layer 112 to determine the spatial distribution and optical properties of the first structured light SL1. In some embodiments, computer-generated holography (CGH) can be used to design the spatial distribution of the first structured light SL1. The geometric pattern G1 of the first super-slim interface 113 and the arrangement of the super-slim atoms 114 are then constructed based on the ideal far-field pattern. The configuration of the second and third light-emitting elements 120 and 130 is similar to that in FIG3A and will not be repeated here.

Figure 4 illustrates a cross-sectional view of the first light-emitting element 110 of Figure 1 during operation, mounted on a carrier 140 and an electrode array 150. Referring to Figure 4 and Figure 1 together, the first light-emitting element 110 includes a first light-emitting structure 111 and a first beam-shaping layer 112 disposed on the first light-emitting structure 111. The carrier 140 supports the first light-emitting structure 111. The electrode array 150 is disposed on the carrier 140. In this embodiment, the first light-emitting structure 111 may include a substrate 115 and a laser diode 116, with the substrate 115 disposed between the laser diode 116 and the first beam-shaping layer 112. This configuration is a flip chip structure, which occupies a smaller volume than structures using wire bonding technology, facilitating the miniaturization of the light-emitting device array 100. Furthermore, the N-pole 117 and P-pole 118 of the laser diode 116 can be electrically connected to the N-pole 152 and P-pole 154 of the electrode array 150, respectively. In this way, the electrode array 150 can drive the laser diode 116 to emit a laser beam toward the first beam shaping layer 112. The laser beam is then converted by the first beam shaping layer 112 into the first structured light SL1 having the reference light RL. In some embodiments, the laser diode 116 may include a vertical cavity surface emitting laser (VCSEL) or a photonic crystal surface emitting laser (PCSEL), but this is not intended to limit the present disclosure.

FIG5 illustrates a cross-sectional view of the second light-emitting element 120 of FIG1 during operation on a carrier 140 and an electrode array 150. Referring to FIG5 and FIG1 together, the second light-emitting element 120 includes a second light-emitting structure 121 and a second beam-shaping layer 122 located on the second light-emitting structure 121. In this embodiment, the second beam-shaping layer 122 is identical to the first beam-shaping layer 112 of FIG4. The carrier 140 supports the second light-emitting structure 121. The electrode array 150 is located on the carrier 140. In this embodiment, the second light-emitting structure 121 may include a substrate 125 and a laser diode 126, with the substrate 125 located between the laser diode 126 and the second beam-shaping layer 122. This configuration is a flip-chip structure, which occupies a smaller volume than structures using wire bonding technology, facilitating the miniaturization of the light-emitting device array 100. Furthermore, the N-pole 127 and P-pole 128 of the laser diode 126 can be electrically connected to the N-electrode 152 and P-electrode 154 of the electrode array 150, respectively. In some embodiments, the laser diode 126 can include a vertical cavity surface-emitting laser or a photonic crystal surface-emitting laser, but this is not intended to limit the present disclosure.

In addition, the second beam-shaping layer 122 has a second super-smooth interface 123, which may include a plurality of super-smooth atoms 124. In some embodiments, the super-smooth atoms 124 may be cylindrical, square, rectangular, or a combination thereof, and may have a square or hexagonal lattice. The top surface areas of these super-smooth atoms 124 may vary, allowing the second beam-shaping layer 122 to determine the spatial distribution and optical properties of the second structured light SL2. In some embodiments, computer-generated holography can be used to design the spatial distribution of the second structured light SL2, and the geometric pattern G2 of the second super-smooth interface 123 and the arrangement of the super-smooth atoms 124 are constructed based on its ideal far-field pattern. In this way, the electrode array 150 can drive the laser diode 126 to emit a laser beam toward the second beam shaping layer 122. The laser beam is then converted into the second structured light SL2 having the reference light RL by the second beam shaping layer 122. In this embodiment, the arrangement of the super-slim atoms 124 can be the same as that of the super-slim atoms 114 in FIG. 4 , and the geometric pattern G2 of the second super-slim interface 123 is the same as the geometric pattern G1 of the first super-slim interface 113, so that the spatial distributions of the first structured light SL1 and the second structured light SL2 can be the same.

Figure 6 shows a cross-sectional view of the third light-emitting element 130 in Figure 1 during operation, mounted on a carrier 140 and an electrode array 150. Referring to Figure 6 and Figure 1 together, the third light-emitting element 130 includes a third light-emitting structure 131 and a third beam-shaping layer 132 positioned above the third light-emitting structure 131. In this embodiment, the third beam-shaping layer 132 is different from the first beam-shaping layer 112 in Figure 4 and the second beam-shaping layer 122 in Figure 5. The carrier 140 supports the third light-emitting structure 131. The electrode array 150 is positioned above the carrier 140. In this embodiment, the third light-emitting structure 131 may include a substrate 135 and a laser diode 136, with the substrate 135 positioned between the laser diode 136 and the third beam-shaping layer 132. This configuration forms a flip-chip structure, which occupies a smaller volume than structures utilizing wire bonding technology, facilitating the miniaturization of the light-emitting device array 100. Furthermore, the N-pole 137 and P-pole 138 of the laser diode 136 may be electrically connected to one of the N-electrodes 152 and one of the P-electrodes 154 of the electrode array 150, respectively. In some embodiments, the laser diode 136 may include a vertical cavity surface-emitting laser or a photonic crystal surface-emitting laser, but this is not intended to limit the present disclosure.

In addition, the third beam-shaping layer 132 includes a third super-sharp interface 133, which includes a plurality of super-sharp atoms 134. In some embodiments, the super-sharp atoms 134 may be cylindrical, square, rectangular, or a combination thereof, and may have a square or hexagonal lattice. The top surface areas of these super-sharp atoms 134 may vary, allowing the third beam-shaping layer 132 to determine the spatial distribution and optical properties of the third structured light SL3. In some embodiments, computer-generated holography can be used to design the spatial distribution of the third structured light SL3, and the geometric pattern G3 of the third super-sharp interface 133 and the arrangement of the super-sharp atoms 134 are constructed based on its ideal far-field pattern. In this manner, the electrode array 150 drives the laser diode 136 to emit a laser beam toward the third beam shaping layer 132. The laser beam is then converted into third structured light SL3 comprising reference light RL by the third beam shaping layer 132. In this embodiment, the arrangement of the super-atoms 134 differs from that of the super-atoms 114 in FIG. 4 , and the geometric pattern G3 of the third super-interface 133 differs from the geometric pattern G1 of the first super-interface 113. This allows the spatial distribution of the third structured light SL3 to differ from that of the first structured light SL1.

It should be understood that the component connections, materials, and functions already described will not be repeated and will be explained first. In the following description, an optical transceiver system having an array of light-emitting components will be described.

FIG7 is a schematic diagram illustrating the operation of an optical transceiver system 200 according to an embodiment of the present disclosure. FIG8 illustrates the spot patterns S1 to S3 of the first structured light SL1, the second structured light SL2, and the third structured light SL3 of FIG7 on a projection plane PP. The optical transceiver system 200 includes a receiver array 210 and the aforementioned light-emitting element array 100. The light-emitting element array 100 includes a first light-emitting element 110, a second light-emitting element 120, and a third light-emitting element 130. On the projection plane PP, the spatial distribution of the first structured light SL1 and the second structured light SL2 is the same, and the spot pattern S1 of the first structured light SL1 and the spot pattern S2 of the second structured light SL2 are the same. Furthermore, on projection plane PP, the spatial distributions of the first structured light SL1 and the third structured light SL3 are different, and the spot pattern S1 of the first structured light SL1 and the spot pattern S3 of the third structured light SL3 are also different. The receiver array 210 includes a plurality of receivers 212, and is capable of receiving the first structured light SL1, the second structured light SL2, and the third structured light SL3 reflected by the projection plane PP. Specifically, the light-emitting element array 100 can emit highly flexible structured light (including first structured light SL1, second structured light SL2, and third structured light SL3) to the receiver array 210. Therefore, the image received by the receiver array 210 can have better image resolution, and the optical transceiver system 200 can realize the function of two-dimensional laser beam array scanning (freely controlling the switching of each light-emitting element in the light-emitting element array 100 (for example, the first light-emitting element 110, the second light-emitting element 120, and the third light-emitting element 130)).

In some embodiments, the optical transceiver system 200 may further include a modulator 220, a focusing lens 230, and an imaging recognition system 240. The modulator 220 is electrically connected to the light-emitting element array 100, enabling the modulator 220 to control the first light-emitting element 110, the second light-emitting element 120, and the third light-emitting element 130 via the electrode array 150. The focusing lens 230 is disposed on one side of the receiver array 210, for example, between the projection plane PP and the receiver array 210, and is configured to focus the first structured light SL1, the second structured light SL2, and the third structured light SL3 onto the receiver array 210. The imaging recognition system 240 is electrically connected to the receiver array 210, enabling the optical transceiver system 200 to perform feature recognition and be applied in image reconstruction technology. In addition, the optical transceiver system 200 having the light emitting element array 100 and the receiver array 210 can be applied to facial recognition systems in mobile phones, expression recognition, 3D sensing in augmented reality glasses, and pedestrian and hand recognition in motion-sensing games.

The foregoing summarizes the features of several embodiments so that those skilled in the art can better understand the aspects of the present disclosure. Those skilled in the art should understand that they can easily use this disclosure as a basis for designing or modifying other processes and structures to achieve the same purposes and/or achieve the same advantages as the embodiments described herein. Those skilled in the art should also recognize that such equivalent structures do not depart from the spirit and scope of the present disclosure, and that various changes, substitutions, and alterations can be made herein without departing from the spirit and scope of the present disclosure.

100: Light-emitting element array 110: First light-emitting element 111: First light-emitting structure 112: First beam-shaping layer 113: First super-smooth interface 114, 124, 134: Super-smooth atoms 115, 125, 135: Substrate 116, 126, 136: Laser diode 117, 127, 137: N-pole 118, 128, 138: P-pole 120: Second light-emitting element 121: Second light-emitting structure 122: Second beam-shaping layer 123: Second super-smooth interface 130: Third light-emitting element 131: Third light-emitting structure 132: Third beam-shaping layer 133: Third super-smooth interface 140: Carrier 150: Electrode array 152: N electrode 154: P electrode SL1: First structured light SL2: Second structured light SL3: Third structured light PP: Projection surface S1, S2, S3: Spot pattern G1, G2, G3: Geometric pattern RL: Reference light 200: Optical transceiver system 210: Receiver array 212: Receiver 220: Modulator 230: Focusing lens 240: Image recognition system

The present disclosure is best understood from the following embodiments when read in conjunction with the accompanying drawings. Note that, in accordance with standard industry practice, various features are not drawn to scale. In fact, the dimensions of various features may be arbitrarily increased or decreased for clarity of discussion. Figure 1 illustrates a perspective view of a light-emitting device array in operation according to one embodiment of the present disclosure. Figure 2 illustrates the spot patterns of the first, second, and third structured lights of Figure 1 on a projection surface. Figure 3A illustrates a side view of the first light-emitting device of Figure 1 on an electrode array. Figure 3B illustrates a top view of the first light-emitting device of Figure 1 on an electrode array. Figure 4 illustrates a cross-sectional view of the first light-emitting element in Figure 1 during operation, positioned on the carrier and electrode array. Figure 5 illustrates a cross-sectional view of the second light-emitting element in Figure 1 during operation, positioned on the carrier and electrode array. Figure 6 illustrates a cross-sectional view of the third light-emitting element in Figure 1 during operation, positioned on the carrier and electrode array. Figure 7 illustrates a schematic diagram of an optical transceiver system in operation according to an embodiment of the present disclosure. Figure 8 illustrates the spot patterns of the first, second, and third structured lights in Figure 7 on a projection surface.

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100: Light-emitting element array 110: First light-emitting element 111: First light-emitting structure 112: First beam-shaping layer 113: First super-smooth interface 114, 124, 134: Super-smooth atoms 120: Second light-emitting element 121: Second light-emitting structure 122: Second beam-shaping layer 123: Second super-smooth interface 130: Third light-emitting element 131: Third light-emitting structure 132: Third beam-shaping layer 133: Third super-smooth interface 140: Carrier 150: Electrode array 152: N electrode 154: P electrode SL1: First structured light SL2: Second structured light SL3: Third structured light PP: Projection Surface G1, G2, G3: Geometric Figures RL: Reference Light

Claims (7)

A light-emitting element array includes: a first light-emitting element including a first light-emitting structure and a first beam shaping layer located on the first light-emitting structure, wherein the first beam shaping layer is configured to convert light emitted by the first light-emitting structure into a first structured light, and the first beam shaping layer includes a first super-smooth interface; a second light-emitting element including a second light-emitting structure and a second beam shaping layer located on the second light-emitting structure, wherein the second beam shaping layer is configured to convert light emitted by the second light-emitting structure into a second structured light, wherein the first structured light and the second structured light have the same spot pattern and spatial distribution on a projection surface, and the second beam The shaping layer includes a second super-smooth interface; and a third light-emitting element includes a third light-emitting structure and a third beam shaping layer located on the third light-emitting structure, wherein the third beam shaping layer is configured to convert light emitted by the third light-emitting structure into a third structured light, wherein the third structured light has a different spot pattern and spatial distribution on the projection surface from the first structured light, and the third beam shaping layer includes a third super-smooth interface, wherein each of the first structured light converted by the first beam shaping layer, the second structured light converted by the second beam shaping layer, and the third structured light converted by the third beam shaping layer has a reference light, and the reference lights are identical to each other. The light-emitting element array as described in claim 1, wherein each of the first super-fluid interface, the second super-fluid interface, and the third super-fluid interface has a plurality of super-fluid atoms, and the super-fluid atoms are cylindrical, square, rectangular, or a combination thereof, and have a square lattice or a hexagonal lattice. The light-emitting device array as described in any one of claims 1-2, wherein each of the first light-emitting structure, the second light-emitting structure, and the third light-emitting structure has a laser diode and a substrate, and the substrate is located between the laser diode and the first beam shaping layer, between the laser diode and the second beam shaping layer, or between the laser diode and the third beam shaping layer. The light-emitting element array as described in any one of claims 1-2 further includes: an electrode array located on a carrier and having a plurality of N electrodes and a plurality of P electrodes, wherein each of the first light-emitting structure, the second light-emitting structure and the third light-emitting structure is electrically connected to one of the N electrodes and one of the P electrodes. An optical transceiver system includes: a light-emitting element array, comprising: a first light-emitting element including a first light-emitting structure and a first beam shaping layer located on the first light-emitting structure, wherein the first beam shaping layer is configured to convert light emitted by the first light-emitting structure into a first structured light, and the first beam shaping layer includes a first super-smooth interface; a second light-emitting element including a second light-emitting structure and a second beam shaping layer located on the second light-emitting structure, wherein the second beam shaping layer is configured to convert light emitted by the second light-emitting structure into a second structured light, and the first structured light and the second structured light have the same spot pattern and spatial distribution on a projection surface, and the second beam shaping layer includes a second super-smooth interface. and a third light-emitting element comprising a third light-emitting structure and a third beam shaping layer located on the third light-emitting structure, wherein the third beam shaping layer is configured to convert light emitted by the third light-emitting structure into a third structured light, and the third structured light has a different spot pattern and spatial distribution from the first structured light on the projection surface, and the third beam shaping layer includes a third super-smooth interface, wherein each of the first structured light converted by the first beam shaping layer, the second structured light converted by the second beam shaping layer, and the third structured light converted by the third beam shaping layer has a reference light, and the reference lights are identical to each other; and a receiver array configured to receive the first structured light, the second structured light, and the third structured light. The optical transceiver system as described in claim 5 further includes: a modulator electrically connected to the light emitting element array; a focusing lens disposed on one side of the receiver array; and an imaging recognition system electrically connected to the receiver array. The optical transceiver system as described in claim 5, wherein the light-emitting element array further includes: an electrode array located on a carrier and having a plurality of N electrodes and a plurality of P electrodes, wherein each of the first light-emitting structure, the second light-emitting structure and the third light-emitting structure is electrically connected to one of the N electrodes and one of the P electrodes.